Question
PRINTING not working when sending data to SWV ITM
I am trying to print data but nothing seems to be working , I do not have cables to use COM, but I am sending data using SWV ITM, anyone who might know what's wrong , thanks!.
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "usb_host.h"
#include "stdio.h"
#include "core_cm4.h"
/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;
I2S_HandleTypeDef hi2s3;
RTC_HandleTypeDef hrtc;
SPI_HandleTypeDef hspi1;
UART_HandleTypeDef huart2;
/* Definitions for defaultTask */
osThreadId_t defaultTaskHandle;
const osThreadAttr_t defaultTask_attributes = {
.name = "defaultTask",
.stack_size = 256 * 4,
.priority = (osPriority_t) osPriorityLow,
};
/* Definitions for rtcTask */
osThreadId_t rtcTaskHandle;
const osThreadAttr_t rtcTask_attributes = {
.name = "rtcTask",
.stack_size = 768 * 4, /* printf needs stack */
.priority = (osPriority_t) osPriorityNormal,
};
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_I2S3_Init(void);
static void MX_SPI1_Init(void);
static void MX_RTC_Init(void);
static void MX_USART2_UART_Init(void);
void StartDefaultTask(void *argument);
/* USER CODE BEGIN PFP */
static void vTaskRTC(void *argument);
static void RTC_SetDateTime_Default(void);
/* USER CODE END PFP */
static void ITM_Enable_Port0(void)
{
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
ITM->LAR = 0xC5ACCE55UL;
ITM->TER = 0x00000001UL; /* stimulus port 0 */
ITM->TCR = ITM_TCR_ITMENA_Msk;
}
int __io_putchar(int ch)
{
ITM_SendChar((uint32_t)ch);
return ch;
}
/* USER CODE BEGIN 0 */
static void RTC_SetDateTime_Default(void)
{
RTC_TimeTypeDef sTime = {0};
RTC_DateTypeDef sDate = {0};
sTime.Hours = 0;
sTime.Minutes = 0;
sTime.Seconds = 0;
sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
sTime.StoreOperation = RTC_STOREOPERATION_RESET;
if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK)
Error_Handler();
sDate.WeekDay = RTC_WEEKDAY_TUESDAY;
sDate.Month = RTC_MONTH_MARCH;
sDate.Date = 31;
sDate.Year = 26; /* 2026 */
if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BIN) != HAL_OK)
Error_Handler();
}
static void vTaskRTC(void *argument)
{
(void)argument;
// RTC_SetDateTime_Default();
for (;;)
{
RTC_TimeTypeDef sTime;
RTC_DateTypeDef sDate;
HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);
HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN);
printf("Time: %02u:%02u:%02u\r\n", sTime.Hours, sTime.Minutes, sTime.Seconds);
printf("Date: 20%02u-%02u-%02u\r\n", sDate.Year, sDate.Month, sDate.Date);
HAL_GPIO_WritePin(GPIOD, LD3_Pin | LD4_Pin | LD5_Pin | LD6_Pin, GPIO_PIN_RESET);
if (sTime.Seconds < 15)
HAL_GPIO_WritePin(GPIOD, LD4_Pin, GPIO_PIN_SET); /* green */
else if (sTime.Seconds < 30)
HAL_GPIO_WritePin(GPIOD, LD3_Pin, GPIO_PIN_SET); /* orange */
else if (sTime.Seconds < 45)
HAL_GPIO_WritePin(GPIOD, LD5_Pin, GPIO_PIN_SET); /* red */
else
HAL_GPIO_WritePin(GPIOD, LD6_Pin, GPIO_PIN_SET); /* blue */
osDelay(500);
}
}
/* USER CODE END 0 */
int main(void)
{
HAL_Init();
ITM_Enable_Port0();
SystemClock_Config();
MX_GPIO_Init();
MX_I2C1_Init();
MX_I2S3_Init();
MX_SPI1_Init();
MX_USART2_UART_Init();
MX_RTC_Init();
osKernelInitialize();
defaultTaskHandle = osThreadNew(StartDefaultTask, NULL, &defaultTask_attributes);
rtcTaskHandle = osThreadNew(vTaskRTC, NULL, &rtcTask_attributes);
if (rtcTaskHandle == NULL)
Error_Handler();
osKernelStart();
while (1) { }
}
/**
* @brief System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* HSE + PLL for SYSCLK, LSI ON for RTC source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 336;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
Error_Handler();
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
| RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
Error_Handler();
}
static void MX_RTC_Init(void)
{
/* Assumes CubeMX configured RTC clock source = LSI.
hrtc.Instance = RTC;
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
hrtc.Init.AsynchPrediv = 127;
hrtc.Init.SynchPrediv = 255;
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if (HAL_RTC_Init(&hrtc) != HAL_OK)
Error_Handler();
}
static void MX_USART2_UART_Init(void)
{
huart2.Instance = USART2;
huart2.Init.BaudRate = 115200;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart2) != HAL_OK)
Error_Handler();
}
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 100000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
Error_Handler();
}
static void MX_I2S3_Init(void)
{
hi2s3.Instance = SPI3;
hi2s3.Init.Mode = I2S_MODE_MASTER_TX;
hi2s3.Init.Standard = I2S_STANDARD_PHILIPS;
hi2s3.Init.DataFormat = I2S_DATAFORMAT_16B;
hi2s3.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE;
hi2s3.Init.AudioFreq = I2S_AUDIOFREQ_96K;
hi2s3.Init.CPOL = I2S_CPOL_LOW;
hi2s3.Init.ClockSource = I2S_CLOCK_PLL;
hi2s3.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_DISABLE;
if (HAL_I2S_Init(&hi2s3) != HAL_OK)
Error_Handler();
}
static void MX_SPI1_Init(void)
{
hspi1.Instance = SPI1;
hspi1.Init.Mode = SPI_MODE_MASTER;
hspi1.Init.Direction = SPI_DIRECTION_2LINES;
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_SOFT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
Error_Handler();
}
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
HAL_GPIO_WritePin(GPIOD, LD4_Pin|LD3_Pin|LD5_Pin|LD6_Pin|Audio_RST_Pin, GPIO_PIN_RESET);
GPIO_InitStruct.Pin = LD4_Pin|LD3_Pin|LD5_Pin|LD6_Pin|Audio_RST_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
}
void StartDefaultTask(void *argument)
{
(void)argument;
// MX_USB_HOST_Init();
for (;;)
{
osDelay(1);
}
}
void Error_Handler(void) // cath the eeror
{
__disable_irq();
while (1)
{
HAL_GPIO_TogglePin(GPIOD, LD5_Pin); /* blink red if any init fails */
for (volatile uint32_t i = 0; i < 250000; ++i) {}
}
}
#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
(void)file; (void)line;
}
#endif